Carton feeding mechanism for packaging machinery



H. L. EVANS May 27, 1941.

CARTON FEEDING MECHANISM FOR PACKAGING MACHINERY Filed Feb. 9, 1939 5 Sheets-Sheet 1 v INVENTOR. /[af1yL.E rams, BY M ATTORNEY.

May 27, 1941.

5 Sheets-.She t 2 L/ I wi l? a;

57 a 3 a L L3. l 1 L} INVENTOR. Jzarzyl Efizw,

ATTORNEY.

May 27, 1941. I H. L. EVANS CARTON FEEDING MECHANISM FOR PACKAGING MACHINERY Filed Feb. 9, 1959 5 Sheets-Sheet 3 'INVENTOR. jfanyll .Ei azzs', BY Z KAT'I'ORNEYII" May 27, 1941. I H. EVANS 2,243,199

CARTON FEEDING MECHANISM FOR PACKAGING MACHINERY v Fild Feb. 9. 1959 5 Sheets-Sheet 4 if" .6 V

y @WATTORNEYN May 27; 1941. H. L. EVANS 2,243,199

CARTON FEEDING MECHANISM FOR PACKAGING MACHINERY Filed Feb. 9, 1939 5 Sheets-Sheet 5 INVENTOR.

Harry Z. iii ans",

ATTORNEY. I

from a magazine ply magazine and Patented May 27, 1941 UNITED STATE can'ronrnnnmd MECHANIISM roa Barry L. Evans,

s Application February This invention relates to improvements in packaging machinery; and the invention has reference, moreparticuiarly, to that part of such machinery operative to set up initially collapsed cartons ready for filling and closing the same.

This invention has for an object to provide novel carton feeding means for automatic packaging machinery which is rapid and accurate in operation, and which is readily subject to timed association in use with automatic carton fillin and'closing mechanisms to which the cartons are to be supplied.

- The invention has for a further object to pro-' vide novel, simple and'efliclent automatic mechanism whereby cartons, as initially flat folded in collapsed condition, are successively extracted in whicha supply thereofis maintained and thereuponexpanded and deposited in holding means, such e. g. as a conveyor, for submission to filling and closing operations.

Other objects of this invention, not'at this time more particularly 'enumerated,'will be un- PACKAGINGMAQHINEBY Newport, it. 1., assignor to United States Automatic Box Machinery 00., Boslindalc, Mass, a corporation a, assassin Nassau: a 14 Claims. (ores-s3) g .4 inclusive, is of cline toward receiving and holding-means law which the cartons are to be delivered. The car-" tops .6, in their initially flatfolded collapsed 'condition,;are f stacked in the magazine H so as to move by gravity toward the discharge mouth 'of'the latter.

Thecarton receiving and holding means is sub iect to wide variation vin form and structure. Illustrative of one form of carton receiving and holding means, the same, as shown in Figs. 1 to the traveling conveyor type comprising, an'endless chain I! supported by sprockets it, upon which :chain are mounted, at suitably spaced intervals, horizontally and trans-'- versely disposed trough-like carton receiving and holding pockets relative to the magazine li as to successively carry the pockets llthereof beneath the dis charge mouth of said magazine. Disposed across derstood from the following detailed description of the same.

Illustrative embodiments of this invention are shown in the accompanying drawings, in which: Fig. l is a side elevation of one form of the novel carton feeding mechanism according to this invention; Fig. 2 is a fragmentary front elevation of the same; Figs. 3 and 4 are'fragmentary sectional rlous stages in the operation of the cartonextracting means which is cooperative with the views-respectively showing vacartonssupply magazine and with the carton receiving and holding means; and Fig.5 is a fragmentary sectional view showing a carton detent means or escapement which is cooperative with the carton supply magazine. 7

Fig. 6 is in part a side elevation and in part a sectional view showing a somewhat modified form of the novel carton feeding mechanism according to this invention; Figs. ,7, 9 and 10 are similar views respectively showing various stages in the operation of the carton extracting means which is cooperative with the carton supwith the carton receiving and holding means; and Fig.8 is a fragmentary horizontal section, .5 ken on line 8-8 in'Fig. '7, but drawn on an enlarged scale.

Similar characters of reference are employed in the above described 'views, to indicate corresponding parts.

Referring first to Figs. .1 to 5 inclusive, the form of carton feeding means therein shown comprises, a magazine I l which is disposed to in- 'structed for purposes the discharge mouth of said magazine, parallel to; the direction and planefof-movementof the 1 conveyor carriedpockets ll,'are spaced carton rest bars 15, the same being supported by bracket pieces I] aflixed between rearward ends thereof and a side of saidmagazine thus leaving the forward ends-of said-rest barsfr'ee and unobpresently 'to appear. ,Said rest bars II are interposed between the mouth of said magazine and Each carton receiving and holding pocket is bounded at one'side by'a' leading side wall; ll of such height that the top margin thereof terminates below the top level or carton supporting surface of said 'rest bars I, and is bounded at the other side. by a trailing sidewall ll of such, height that lts'top margin projects above the top, level or carton supporting surface of'said rest bars. Said pocket side walls I! are provided is provided, as e.

with-notches llto straddle such parts of the; rest a 7 bar structure as lies thereoh. V I j The flat folded collapsed cartonsare disposed so as to stand endwise therein in successive order.- The lowermost carton is normally sustained against outward displacement from the magazine by any suitable formof'retention means with which the magazine in the path of movement ber 20 to engage the lower end of the carton, side retention lip membersIItoengage the side margins of the carton. Said side lip members are so formed that,'when moving force is exercised upon the 'lowernsiost aid T carton, it will readily spring or snap over ll. Said conveyor is so located the conveyor so that the, pockets M of the latter pass beneath the same. 4

g. a transverse bottom lip mem-, 1

suitably applied outwardly ward of the mouth of lip members, and thus escapethe restraint thereof, while a succeeding carton is in turn engaged and retained by said lip members. The location of the retention means is such that the lower-,

most carton stands above and in a plane angu lar to the horizontal plane of movement of the carton receiving .and holding for, whereby a cycle of reciprocable and oscillatory movements is imparted thereto which is operative to carry the extractor blade endwise into the lowermost carton exposed within the mouth offthe magazine, then,

carton retention means of the magazine and transferring the same for engagement by the carton receiving and holding means, and finally, by a reversed endwise movement, withdrawing the extractor blade from the thus manipulated carton. The actuating means producing such movements of said extractor blade operates the latter in timed relation to the operative movements of successive receiving and holding means relative to the discharge end of said carton magazine. 7

An illustrative form of extractor blade mechanism, as shown in Figs. 1 to 4 inclusive, comprises a bearing bracket 22 suitably affixed to some stationary part of the supporting framework of the machine, such e. g. as the frame rail or bar '23; Said bearing bracket 22 is suitably disposed in upstanding position adjacently forthe magazine/ll. Journaled in'said bearing bracket 22 are spaced shafts 24 and 25. Said shafts 24 and 25 are disposed to lie in a plan approximatelyparallel to the plane of the lowermost carton as supported within the mouth of the magazine. Fixed on the outer shaft 24 is a crank-arm 25, 'and,'in like manner, fixed on the inner shaft 25 is a second crank-arm 21' of somewhat less length. Said crank-arms are simultaneously revolved at equal speeds by gearing 23 operative between saidshafts 24 and 25. One of said shafts, as e. g the outer shaft 24, is'driven from a power shaft 23 of the machine by suitable transmission, such e. g. as the chain and sprocket transmission 33. Connected with and between the free end portions of said crank-arms 2C and 21 is a carriage block 3|. The rearward end of said carriage block is coupled to the crank-arm 25 by a fixed pivotal connection 32, whereas the forward end of said carriage blockis coupled to the crank-arm 21 by a pivotal connection 33 operative in a suitably shaped compensatingcam slot 34. Affixed to said carriage block- 3|,to project forwardly therefrom, is a comparatively thin extractor blade 3|.v

In operation, the carriage block 3| is revolved bythe crank-arms -232l in clockwise direction as viewed in Figs. 1, 3 and 4. As the carriage block 3| crosses the zenith of its revolving movement, the extractor blade 35 is poised in aligned opposition to the upper open end of the lowermost collapsed carton C exposed within the mouth of the magazine II (see Fig. 1). As the carriage block continues its movement from this point, the free end of said extractor blade is caused to descend and enter between the walls of said 001- lapsed carton. During such carton entering movement ofthe extractor blade, owing to the length diiferential between.v the longer outer crank-arm 26 and the shorter crank-arm 21, the

by a downward and ,out'-,. ward movement, freeing said carton from the block 3| toward the nadir carton, while it is being movedoutwardly and .tractor .blade outwardly former tends to forwardly overrun the latter, thus advancing the carriage. block 3| relative to the pivotal connection 33 which couples the same to the shorter crank-arm, whereby the inner inclined end of the compensating cam slot 34 is moved relative to said pivotal connection 33 and, by its compensating cam action thereon, operates to offset the downward swinging movement of the extractor blade, thereby, movement of the latter into the carton, resolving the motion thereof to a substantially straight line movement in th plane of the carton interior (see full line representationin Fig. 3).

After the extractor blade tively entered into the carton C as above described, the continued revolution of the carriage of its revolving movemovement of the exfrom the magazine mouth which thereby carries with it the engaged carton, forcing the latter to snap over and away from the lip members 2| or like retention means, and thereupon swinging the carton downwardly for free deposit upon the carton rest bars I! (see dotted representation in Fig. 3).

As the carriage block 3| continues its motion ment produces a bodily and approaches and crosses the nadir of its reby its compensating cam action thereon, operates to offset the upward swingingmovement of the extractor blade, thereby,-during the period of withdrawing movement of the latter out of the carton, resolving the motion thereof to a substantially straight line movement while it. is freed from the carton (see Fig. 4)

In order to prevent linear displacement of the away from the magazin for deposit upon the carton rest bars I 5, and especially during the withdrawing of the extractor blade 33 from'the carton interior, a suitably located curved stop guide 33 is provided; the same being preferably supported by a bracket piece 31 which is amxed ,to the far side of the magazine I I Inorder to assure the proper squaring expansion. of the carton by relative movement of its sides about the longitudinal score lines intermediate, the same, means-is provided for pre-' liminarily breaking the score lines andthus partially expanding the carton as it is moved by the extractor blade 35 outwardly of the magazine and prior to deposit upon the carton rest bar II. An illustrative means for thi purpose comprises. a

, lever member ll, pivotally mounted by itslower end to a stationary bracket 33 connected with the machine framewor The upper end of said lever member 33 carries a push-piece 43, the free end of which enters through an opening 4i in the near sideof the the magazine II and terminates in a presser piece 42 which normally lies adjacent to the path of movement of a carton C, whenthe latter is engaged by the extractor blade 35, and swung thereby downwardly from the magazine during the period of the 35 has been opera- During such extractor blade compensating cam slot 34 is that at the moment Y awaiting carton C.

the latter.

said vertical arm 46 means 45 retains said lever member 3. and its engages the roller 43 in actuatable relation to the cam 44.

Said lever member 38, its push-piece 40 and presser-piece 42 are normally retracted so that the latter is initially oflset out of the path of movement of the carton which is being extracted from the magazine. The cam 44 is so formed the moving extracted carton, with the extractor blade 35 still entered therein, is opposite the presser-piece 42, said cam effects an inward swinging movement of the. lever member 38 which operates to thrust the presser-piece 42 against the near edge of the collapsed carton while the far edge of the latter is backed by the far side of the magazine. Such thrust of the presser-piece partially expands the carton, and breaks the longitudinal score lines between the sides thereof (see Fig. 2). Afterthis is accomplished, the presser-piece is immediately retracted, and the extracting movement of the carton continues until the moved therefrom and the carton is finally dropped onto the carton rest bars I! in a partially expanded condition (see dotted representation thereof in Fig. 2)

After the extracted carton C is deposited upon the carton rest bars I5, anapproaching carton receiving and holding pocket I4 on the conveyor moves under said carton rest bars until its'trailing side wall I8 engages the near edge of the As the pocket I4 advances beneath the rest bars ,.I5, the engaging trailing side wall I8 thereof pushes the carton along said restbars until it rides off of the same, whereupon the trailing edge of the carton drops down into the pocket I4 so that the leading edge of the carton overhangs the leading side wall I1 the pocket, thus disposing the carton in a downwardly and rearwardly inclined initial position within the pocket I4.

In some cases, before the carton is finally fully expanded or squared and pressed down into the pocket I4, it may be desirable to move the same endwise relative to the pocket I4 so as to center the same lengthwise therein. a One means suitable to accomplish this purpose comprises, a pivotally mounted bell-crank lever having a dependent vertical arm 4G and a horizontal arm 41. Said bell-crank lever is mounted on a fulcruming bracket 48, which, in the instant case, is afaxes to the bearing bracket 22, thus disposing its vertical arm 48 in opposition to the outer side of the conveyor and the pockets I4 carried by Affixed to the free end portion" of finger 49. Afilxed on the far end of the shaft 2! is a crank-wheel between the crank-pin of which and the free end of the horizontal arm 41 of the bell-crank lever is a connecting link II. The operation of the bell-crank lever is so timed that, as pocket I4 carrying a deposited carton C arrives opposite the same, the vertical arm 4| ls swung forward, thus bringing the push-finger 49 into engagement with the opposed end ofv the carton. Inward movement of the push-finger v 4! shifts the carton endwise to a centered or other desired predetermined position relative to the pocket I4.

Cooperating with the conveyor and its pockets 75 extractor blade I! is re- 4 is .a suitably shaped pushpocket I4 so as to I4 is a carton squaring guide and keeper rail 51 beneath which the pockets I4 pass. At; its receiving end portion, said rail 52 is provided with a downwardly and forwardly inclined cam sectlon As a pocket with the initially deposited carton therein passes beneath the receiving end of said rail 52, the upwardly and forwardly projected leading edge of thecarton engages the cam section 53, so that, as said edge passes'along the latter, squaring pressure is ex-' ercised upon'the carton whereby it is both fully expanded or squared and pressed down into the by the latter, ready, as the conveyor moves on, to be subjected to such filling and closing opera-' tions as any given associated mechanism is de signed to perform (see Fig. 2).

The carton extracting mechanism, in the illustrative form thereof above described, is timed in operation to deposit a carton on the rest bars I5 as each pocket I4 of the'conveyor approaches to pass the carton supply magazine; and it will be obvious that the cartons will be picked up and finally lodged in the pockets I4 without necessity for interrupting continuous motion of the latter, although it will be equally obvious that the carton delivery and pickup by the pockets I4 willbe as effective even though the conveyor and its pockets are operated in'a step by' step or intermittent manner, as may well be ,desirable in connection with certain types of filling and closing machines. r I

It is, in most cases, desirable to avoid submitting the lowermost carton G, of the stack of cartons contained in the magazine, to the full weight of the stack, since such applied weight may tend to so tightly compress saidlowermost cartonas to unduly impede'free and easy entrance-of the extractor blade 35 thereinto- 'To avoid this, a

detent mechanism may be provided-to hold back the main body of the stack of cartons, leaving but a limited'number of cartons adjacent to the magazine mouth, said detent being actuatedin such timed relation to the carton extracting o erations that, as a lowermost carton is removed from the group thereof at the magazine mouth,

a replacement carton is released from the main body of the stackito join said group. One form of detent mechanism adapted to serve the above stated purpose comprises, a pivoted lever 54, timed oscillation of which is produced by a cam 5i driven by the power shaft 29, and cooperative with a roller carried by the outer end of said lever. Suitably-connected with the inner end'of said lever 54, so asto be vertically reciprooated thereby, is a detent bar 51, upon the upper end of which is mounted a-conical detent member 5!. Said detent member ,58 projects through an opening 59, in the near wall of the magazine so thatits inclined surface is presented for engagement by the lowermost cartons of therestralned portion of the stack thereof. The thus engaged cartons are wedged against downwardn'iovement toward the magazine mouth. Fixed onthe near wall of the magazine is an inclinech cam block OII with which a roller or stub s1 carried by the free 'end of the detent member 58 cooperates. Spring means '2 yieldably maintains said roller or stud il in operative engagement with said cam block OI. when by timed'operation of the lever 54,

' upward movement is imparted to the detent bar '1, the detent member 58 is carried upward by the latter, and, by reason of the engagement of its roller or stud BI with the cam block 6|, is at the same time swung outward relative to the be firmly embraced and held 4 2,248,199 restrained cartons, whereby the lowermost of the means 83 mounted on a. power shaft 84 of the latter escapes the restraint of the detent member machine. A cam of the cam means 83 operates and moves, by gravity, downwardly through the magazine to join the group of cartons disposed adjacent to the magazine mouth; after which the detent mechanism resumes normal initial carton retaining position (see Figs. 1 and 5).

In Figs. 6 to 10 inclusive of the drawings is shown a somewhat modified. form and construction of -carton feeding mechanism, which embodies however the broad general principles of this invention. The operation of the extractor blade mechanism in said modified arrangement is .designed to directly deposit and expand the carton removed from the magazine into vertically positioned carton receivingand holding means. Said modified form of carton feeding mechanism comprises, a magazine 10 disposed to incline toward the receiving and holding means.

Thecollapsed cartons are stacked in the magatoward its diszine so as to move by gravity charge mouth. a

The carton receiving and holding means is of the traveling conveyor type comprising, an endless chain H supported by sprockets l2. Mounted on the side of the conveyor chain II toward the magazine are suitably spacedcarton receiving and holding pockets 13 disposed in perpendicular plane. Said pockets 13 are bounded by side walls to define a pocket space corresponding to the width of a carton C when the latter is ex panded or. squared.

The flat folded collapsed cartons are disposed within the magazine HI so as to stand endwise therein in successiye order. The lowermost carton is normally sustained against outward displacement from the magazine by any suitable form of retention means, such e. g. as a top keeper plate 14 and side lip members 15.

. The means for successively extracting the collapsed cartons from the magazine comprises, an

extractor blade and actuating mechanism. therefor, whereby a cycle of reciprocable and oscillatory movements is imparted to the blade adapted to insert the blade into a carton exposed within the mouth of the magazine, then, by a downward and outward movement, swinging the carton out of the magazine for delivery to a receiving and holding means, then withdrawing the blade from. the carton, and thereafter returning the blade to normal initial or starting position. The actuating means producing such blade movements beingsuch as to properlyatime the operations relative to the successive movement of the receiving and holding means to carton receiving position. v a

-The extractor blade mechanism, as shown in 6 to 10 inclusive. comprises a stationary upstanding bearing bracket 16 in which is Journaled a rock shaft 11.- Pivotally mounted on said rock' shaft Tl as a fulcrum, is arocklng cradle ll having a guideway formed therein to slidably support a carriage block or plate 19. Aflixed to said carriage block or plate 19, to project forwardly therefrom, is a comparatively thin extractor blade 80. Fixedly connected with said rock shaft 11 is a lever member 8|,

said carriage block or plate 19.

The means for producing properlytimed move-.

carton C (see Fig. 10).

-tially perpendicularthe free end ofwhich is operatively connected, through a link 82, with a connecting rod 85 which is connected with the rocking cradle 18, and a cam of said cam means, in like mannenoperates a connecting rod it, whichis connected with a crank-arm 81 fixed on sahi rock shaft 11, thereby'actuating said rock shaft 11 to impart operative movements to said lever member III. which controls the reciprocatory movements of said caniage block or plate 19 and the extractor blade 80 carried thereby.

In operation, the rocking cradle I8, by the operation of its control cam, is disposed in an initial inclined position, to in turn dispose the carriage block or plate 19 in a plane substantially parallel to the plane of the lowermost carton C within the mouth of the magazine 10, while at the same time the cam controlling the rock shaft II has swung back the lever 8| to retract the carriage block or plate 19 on said rocking cradle 18, thus poisirm the extractor blade 80 in aligned opposition to the upper open end of said lowermost With extractor mecha-. nism in this initial position, the cam controlling the rock shaft 11 and lever member 8| functions to rock said shaft 11 and. lever member-Il forward, thus sliding forward the carriage block or plate I! to cause the extractor blade 80 to descend and enter between the walls of said (:01- lapsed carton (see Fig. 6)-..

After the extractor blade, is thus entered in the carton C, the cam of the rocking cradle 18 operates to swing the same from initialinclined position to a substanposition, whereby the extractor blade II, which. during such motion remains enteredin the carton C, is swung outwardiy away from the magazine mouth, thereby carrying with it the engaged carton, forcing the latter to snap over and away from the keeper plate 14 and retention .lip members 78. -During such movement of the carton, the same is maintained against displacement from the extractor blade 80 by a curved stop guide means 88, which extends from the magazine 10 toward the awaiting conveyor support pocket 13. As operatively entered in the canton C, the extractor blade registers with a face wall of said carton leaving the adjoining side wall of the latter freely projecting therefrom. As a consequence of this, as the blane and carton reach the pocket 13, the blade enters said contacted face wall of the carton in the pocket, and as such entrance is made, the adjoining side wall abuts the margin of a side of said Docket, whereby said ,lide wall is forced to turn about thelscore. line-intermediate thesameand'the entering face wall, thus, causing the carton to expand orsquare itself, and

. thereupon enter the pocket 13-, so as to be firmly i0 relative to the magazine 10, comprises, cam

embracedthereby and held therein subject to such subsequent filling and closing operations as any given associated mechanism is designed to perform (see Figs. 7 and 8).

After-the carton C is thus entered in an awaiting receiving and holding pocket 13, the cam controlling the rock shaft 11 and lever member Ii functions to rock said shaft 11 and lever member if rearward, thus slidingrearwardthe carriage block or plate I! to cause the extractor blade CI to withdraw from the carton which has been deposited in the receiving and holding pocket (see Fig. 9).

As soon as the extractor blade is withdrawn from the deposited carton, thecam'controlling themovements of the rocking cradle 18 operates controlling the movements to swing the same'from perpendicular position back to normal initial inclined position, thus completing the cycle of cartonextracting and delivering operations, and again poising the extractor blade 80 for repetition of said operations "5 (see Fig.

The modified form of carton. feeding mechanism thus described is adapted tocooperate with conveyor carried carton receiving and holding means which are progressively operated or moved 10 carton subject to extraction, a detent mechanism may be provided if desired. This detent mechanism, in one illustrative form thereof as shown in Figs. 6 and '7, comprises a pivoted detent member 89 arranged to beactuatedby a lever arm 96 through a spring biased-link 9| controlled by a cam means (not'shpwn) and in timed relation to the carton extracting operations. H ,Eiaid detent member 89, at proper times, is projected through an opening 92 in the floor of the magazine so as to be interposed between the lowermost carton 9.5+, subject to removal from the magazine and the remaining cartons of the stack thereof contained "in the magazine, thus retaining the latter against downward movement toward the mouth of the magazine until removal of said lowermost carton a has been effected, whereupon the detent member withdrawn to permit a succeeding carton to replace the removed carton in position to be engaged by the extractor blade during a succeeding cycle of operative movements of the latter.

I am aware that many changes could be made-- in the various mechanisms and devices making up the carton feeding mechanisms above described,

and that many apparently widely different embodiments of thefeatures of the invention could bernade without departing from the scope thereof as defined in the following claims. It is therefore intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and i not in a limiting sense.

I claim: a 1. In a mechanism for the purpose described, the combination with a traveling conveyer having carton receiving and holding pockets of means to feed cartons for expansion by entrance into said pockets, said feeding means comprising a magazine to hold a supply of cartons in flat collapsed upstanding condition subject to gravitation toward the mouth thereof, said magazine being disposed with its mouth angularly opposed to the line of travel of said carton receiving and holding pockets, said magazine having means to normally retain the cartons against outward escape therefrom with the lowermost carton sustained at the mouth thereof, a non-rotative thin fiat extractor blade of substantial width, means to-move said blade bodily, in timed relation to the travelingmovement of said pockets, through a circuital pathin line with the longitudinal axis of the bladeand perpendicular to its face plane and to that of a carton exposed at the magazine mouth, whereby, in its cyclic movement, said blade is first caused to enter endwise into said carton with a fiat face thereof bearing upon the outer face wall of said carton, then, while maintainin'gsuch carton engaging relation, operating to swing said carton so asto disengage the same from the re.-

taining means and move it out of the magazine and to thence carry it to a position to be engaged by areceiving and holding pocket, and thereafter to outwfliftily Withdraw from said carton.

2."In mechanism for the purposes described as defined in claim 1, wherein dei'ent meansis provided for feeding cartons toward the magazine mouth, and means for actuating said detent means in timed relation to the removal of cartons from the magazine mouth.

3. In mechanism for the purposes described, the combination with a traveling conveyor having carton receiving and hol dingpo'ckets, a magazine to hold a supply of cartons in fiat collapsed uplstandingcondition subject to gravitation toward the mouth thereof, said magazine being disposed with its mouth opposed to the line of travel of said carton receiving and holding pockets, carton rest means intermediate the magazine mouth and the operative path of movement of said pockets, an extractor blade, means to actuate said extractor blade in timed relation to said pocket movements, said actuating means being operative to enter said blade endwise into the carton disposed at the magazine mouth, then to swing theblade to remove the engaged carton from the magazine mouth and then to deposit the removed cartoiidii said cartonmrest means while withdrawing the blade therefrom, said receiving and holding pockets having means tov move the cartons from said rest means for reception therein, and means cooperative with said pockets for squaring the received cartons within the embrace of said pockets.

4. In mechanism for the purposes described,

-.the combination with a traveling conveyorhaving carton receiving-and holding pockets, a magazine to hold a supply of cartons in fiat collapsed upstandifi'g condition subject to gravitation toward theJpouth thereof, said magazine being disposed with its mouth opposed to the line of travel of said carton receiving and holding pockets, carton rest means intermediate-the magazine mouth and the operative path of movement of said pockets, an extractor blade, means to actuate said extractor blade in timed relation to said pocket movements, said actuating means being operative to enter said blade endwise into the carton disposed at the magazine mouth, then to swing the blade to remove the engaged carton from the magazine mouth and then to deposit the removed carton on said carton rest means while withdrawing the blade therefrom, said receiving and 6. In mechanism for the purposesdescribed as defined in claim 3, wherein said extractor blade actuating means comprises a pair of spaced crank-arms, means for revolving said crank.- arms, a carriage block pivotally supported by and between said crank-arms so as to be revolved thereby, and said extractor blade being mounted on and so as to project endwise from said carriage block.

7-. In mechanism for the purposes described as defined in claim 3, wherein said extractor blade actuating means comprises an outer and an, a

' inner crank-arm, said innercrank-arm being axes of rotation lying in magazine mouth,

somewhat shorter than means to revolve said crank;arms; at equalfspeeds,

a'carriage block, a fixed coupllng conne'c'tlonbeportion of said cartween the rearward e'nd' I riage block andsaid-outer crank-arm; said-carthe outer crank-arm, ate

* image: lilade'of substantial width. hianstbiaetua d bla in t m qr ati at t e movements aid poc kets relative to "the magazinefmouth rough 'ajgcircuital gpathfin line wi h 1 th 0ngi riage block having a compensating Cam -slot in its forward portion, a coupling connection between said inner cran'lr-arhri' andithecarriage block, said latter 'conne' ction being cooperative with said cam slot which ismovably related thereto, and said extractorblade being mounted onand so asto project endwise froms'aid carriage f 'block. 1 a

8. In mechanisrnof'the kind describedfa'mag azine to hold a supply of ject to movement toward *th'e discha'rge mouth thereof, means to normally retain said cartons against escape' from'said jm'agazinemouth, means discharge end of the magazine-and having their a plane more or allel to the mouth oi 'the latter, means forrevolving said crank-arms, a

from toward said magazineiall whereby r m tion of said carriage tons in endwise upstanding position therein sub:

ject to movement toward the discharge mouth thereof, means to normally retain said'cartons against escape from said magazine mouth, means to successively remove said cartons from the said latter means comprising spaced outer and inner crank-arms out set from the discharge 'end of the magazine and having their axes lying in a plane more or less parallel to the mouth of the latter, said inner crank-arm being somewhat shorter *than'the outer crank-arm, means for revolving said crankarms, a carriage block, a fixed coupling connection between the rearward end portion'of said carriage block and'sald'outer 'cranl r-arn said carriage block having a compensating camslot in its forward portioma coupling connection between said inner crank-arm andthe carriage block, said latter connection being cooperative with said cam slot which is movably related thereto, and an extractor blade mounted on said carriage block to project therefrom toward said magazine, all whereby revolution of said-carriage block operates to'carry said blade with a substantially straight line movement'endwise'i nto a carton at the mouth of said magazine, then to swing the engaged carton out of the latter, and

- to hold-a supply 'of cartons in fiat collapsed upstanding condition subject to movement toward the mouth thereof, said magazine being disposed with its mouth anguiarly opposed to the'line oi non-rotative thin fiat 'eX- travel of said pockets, a

carriage bloch pivotally supported by andbetweensaidcrank arms-so as to be revolved thereby, 'and an extractor blade 5 mounted on said carriage bl'o'ck'toproject therebloclr operates re carry 1 said blade endwiseinto a carton at the mouth wardly oif par- Same directly into the" emb geese? .a j mpan m 1'5 flatfolded collapsed cartons in endwiseupstanding{position therein'sub- "the'combination Carton receiving s 2 to'successivelyremove said'cartonsfromthe magazine mouth,said latter of spaced crank-arms' outwardly ofiset'"from the i' s e' Pebble ai uinin art t. ean m i iam means'comprising' a palr ta ningsufch carton enhyblad w e bv the engaged carton from the ma'gazine andicarry the race of an opposed w is u ringeffect,upon on, and ther aiter'to'withdraw said blade theicart I; n memei H and holdin Y means to'normall'y 1 "cape *from said 'ma'g 1 cessively remove saidcartons fi disposed to'bear on are i w e a e e h s n mg'relati'on, to swing the bladetore'move the ena 'the carton 1th said; blade "only lof'the cars'uch' carton engaggaged carton from the magazine and carry the same directly to the carton receiving means, and thereafter to withdraw said blade from the carton.

13. In mechanism for the purposes described, the combination with a traveling conveyer having carton receiving and holding pockets, a magazine to hold a supply of cartons in flat collapsed upstanding condition subject to movement toward the mouth thereof, said magazine beig disposed with its mouth angularly opposed to the line of travel of said pockets, a non-rotative thin flat extractor blade of substantial width, means to move said blade bodily, in timed relation' to the traveling movement of said pockets, through a circuital path in line with the longitudinal axis of for delivery to a receiving and holding pocket,

and then to outwardly withdraw from said carton.

14. In mechanism for the purposes described as defined in claim 13, wherein means is provided for partially expanding the moving carton While being advanced by the extractor blade.

HARRY L. EVANS. 

